wangzhen38

### Describe your problem Why is question_tks used in func rerank, but not used in rerank_by_model?https://github.com/KevinHuSh/ragflow/blob/main/rag/nlp/search.py#L310

### Describe your problem If both auto question and graphrag are enabled at the same time, how are the results calculated? Are they simply concatenated together, or are they combined...